petsc-3.5.1 2014-08-06
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VecMTDotBegin

Starts a split phase transpose multiple dot product computation.

Synopsis

#include "petscvec.h"    
PetscErrorCode  VecMTDotBegin(Vec x,PetscInt nv,const Vec y[],PetscScalar result[])

Input Parameters

x - the first vector
nv - number of vectors
y - array of vectors
result - where the result will go (can be NULL)

Notes

Each call to VecMTDotBegin() should be paired with a call to VecMTDotEnd().

See Also

VecMTDotEnd(), VecNormBegin(), VecNormEnd(), VecNorm(), VecDot(), VecMDot(),
VecDotBegin(), VecDotEnd(), VecMDotBegin(), VecMDotEnd(), PetscCommSplitReductionBegin()

Level:advanced
Location:
src/vec/vec/utils/comb.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages